The refusal of including auto-update is pretty infuriating to me. "Will you force users to keep IE up to date so developers don't have to support legacy browse

The refusal of including auto-update is pretty infuriating to me. "Will you force users to keep IE up to date so developers don't have to support legacy browsers. Corporations don't want to have the latest version of a browser." Alright, I understand that auto-updating could be an issue for IT at large corporations, but why not just make it a feature that is enabled by default? I'm sure IT guys who DO want their users using the latest stable release would be quite happy, and those who don't could easily disable it.